# frozen_string_literal: true

require "shellwords"
require "rake/testtask"

require_relative "test/config"
require_relative "test/support/config"

def run_without_aborting(*tasks)
  errors = []

  tasks.each do |task|
    Rake::Task[task].invoke
  rescue Exception
    errors << task
  end

  abort "Errors running #{errors.join(', ')}" if errors.any?
end

desc "Run mysql2, trilogy, sqlite, and postgresql tests by default"
task default: :test

ENV["RAILS_MINITEST_PLUGIN"] = "true"

desc "Run mysql2, trilogy, sqlite, and postgresql tests"
task :test do
  tasks = defined?(JRUBY_VERSION) ?
    %w(test_jdbcmysql test_jdbcsqlite3 test_jdbcpostgresql) :
    %w(test_mysql2 test_trilogy test_sqlite3 test_postgresql)
  run_without_aborting(*tasks)
end

adapters = %w( mysql2 trilogy postgresql sqlite3 sqlite3_mem )

namespace :test do
  task isolated: :railties do
    tasks = defined?(JRUBY_VERSION) ?
      %w(isolated_test_jdbcmysql isolated_test_jdbcsqlite3 isolated_test_jdbcpostgresql) :
      %w(isolated_test_mysql2 isolated_test_trilogy isolated_test_sqlite3 isolated_test_postgresql)
    run_without_aborting(*tasks)
  end

  task :railties do
    ["active_record/railtie"].all? do |railtie|
      sh(Gem.ruby, "-r", railtie, "-e", "'OK'")
    end || raise("Failures")
  end

  desc "Run Active Job integration tests for all adapters"
  task "integration:active_job" do
    errors = []
    adapters.each do |adapter|
      Rake::Task["test:integration:active_job:#{adapter}"].invoke
    rescue Exception
      errors << adapter
    end
    abort "Errors running integration for #{errors.join(', ')}" if errors.any?
  end

  Rake::TestTask.new(:arel) do |t|
    t.libs << "test"
    t.test_files = FileList["test/cases/arel/**/*_test.rb"]

    t.warning = true
    t.verbose = true
    t.options = "--profile" if ENV["CI"]
  end
end

namespace :db do
  desc "Build MySQL and PostgreSQL test databases"
  task create: ["db:mysql:build", "db:postgresql:build"]

  desc "Drop MySQL and PostgreSQL test databases"
  task drop: ["db:mysql:drop", "db:postgresql:drop"]
end

adapters.each do |adapter|
  namespace :test do
    Rake::TestTask.new(adapter => "#{adapter}:env") do |t|
      adapter_short = adapter[/^[a-z0-9]+/]
      t.libs << "test"
      files = (FileList["test/cases/**/*_test.rb"].reject {
        |x| x.include?("/adapters/") || x.include?("/encryption/performance")
      } + FileList["test/cases/adapters/#{adapter_short}/**/*_test.rb"])
      files = files + FileList["test/cases/adapters/abstract_mysql_adapter/**/*_test.rb"] if ["mysql2", "trilogy"].include?(adapter)

      t.test_files = files
      t.warning = true
      t.verbose = true
      t.options = "--profile" if ENV["CI"]
      t.ruby_opts = ["--dev"] if defined?(JRUBY_VERSION)
    end

    namespace :integration do
      # Active Job Integration Tests
      namespace :active_job do
        Rake::TestTask.new(adapter => "#{adapter}:env") do |t|
          t.libs << "test"
          t.test_files = FileList["test/activejob/*_test.rb"]
          t.warning = true
          t.verbose = true
          t.options = "--profile" if ENV["CI"]
          t.ruby_opts = ["--dev"] if defined?(JRUBY_VERSION)
        end
      end
    end

    namespace :isolated do
      task adapter => "#{adapter}:env" do
        adapter_short = adapter[/^[a-z0-9]+/]
        puts [adapter, adapter_short].inspect

        dash_i = [
          "test",
          "lib",
          "../activesupport/lib",
          "../activemodel/lib"
        ].map { |dir| File.expand_path(dir, __dir__) }

        dash_i.reverse_each do |x|
          $:.unshift(x) unless $:.include?(x)
        end
        $-w = true

        require "bundler/setup" unless defined?(Bundler)

        # Every test file loads "cases/helper" first, so doing it
        # post-fork gains us nothing.

        # We need to dance around minitest autorun, though.
        require "minitest"
        Minitest.singleton_class.class_eval do
          alias_method :_original_autorun, :autorun
          def autorun
            # no-op
          end
          require "cases/helper"
          alias_method :autorun, :autorun # suppress redefinition warning
          alias_method :autorun, :_original_autorun
        end

        failing_files = []

        test_options = ENV["TESTOPTS"].to_s.split(/[\s]+/)

        test_files = (Dir["test/cases/**/*_test.rb"].reject {
          |x| x.include?("/adapters/") || x.include?("/encryption/performance")
        } + Dir["test/cases/adapters/#{adapter_short}/**/*_test.rb"]).sort

        if ENV["BUILDKITE_PARALLEL_JOB_COUNT"]
          n = ENV["BUILDKITE_PARALLEL_JOB"].to_i
          m = ENV["BUILDKITE_PARALLEL_JOB_COUNT"].to_i

          test_files = test_files.each_slice(m).filter_map { |slice| slice[n] }
        end

        test_files.each do |file|
          puts "--- #{file}"
          fake_command = Shellwords.join([
            FileUtils::RUBY,
            "-w",
            *dash_i.map { |dir| "-I#{Pathname.new(dir).relative_path_from(Pathname.pwd)}" },
            file,
          ])
          puts fake_command

          # We could run these in parallel, but pretty much all of the
          # railties tests already run in parallel, so ¯\_(⊙︿⊙)_/¯
          Process.waitpid fork {
            ARGV.clear.concat test_options
            Rake.application = nil

            Minitest.autorun

            load file
          }

          unless $?.success?
            failing_files << file
            puts "^^^ +++"
          end
          puts
        end

        puts "--- All tests completed"
        unless failing_files.empty?
          puts "^^^ +++"
          puts
          puts "Failed in:"
          failing_files.each do |file|
            puts "  #{file}"
          end
          puts

          exit 1
        end
      end
    end

    namespace :encryption do
      namespace :performance do
        Rake::TestTask.new(adapter => "#{adapter}:env") do |t|
          t.description = "Encryption performance tests for #{adapter}"
          t.libs << "test"
          t.test_files = FileList["test/cases/encryption/performance/*_test.rb"]

          t.warning = true
          t.verbose = true
          t.options = "--profile" if ENV["CI"]
          t.ruby_opts = ["--dev"] if defined?(JRUBY_VERSION)
        end
      end
    end
  end

  namespace adapter do
    task test: "test_#{adapter}"
    task isolated_test: "isolated_test_#{adapter}"

    # Set the connection environment for the adapter
    task(:env) { ENV["ARCONN"] = adapter }
  end

  # Make sure the adapter test evaluates the env setting task
  task "test_#{adapter}" => ["#{adapter}:env", "test:#{adapter}", "test:integration:active_job:#{adapter}"]
  task "isolated_test_#{adapter}" => ["#{adapter}:env", "test:isolated:#{adapter}"]
end

namespace :db do
  namespace :mysql do
    mysql_configs = ARTest.config["connections"]
      .values_at("mysql2", "trilogy")
      .flat_map { |connections| connections.values_at("arunit", "arunit2") }
    mysql_connection_arguments = lambda do |connection, exclude_user_password: false|
      connection = connection.except("username", "password") if exclude_user_password
      [
        ("--user=#{connection["username"]}" if connection["username"]),
        ("--password=#{connection["password"]}" if connection["password"]),
        ("--host=#{connection["host"]}" if connection["host"]),
        ("--port=#{connection["port"]}" if connection["port"]),
        ("--socket=#{connection["socket"]}" if connection["socket"])
      ].join(" ")
    end

    desc "Create the MySQL Rails User"
    task :build_user do
      mysql_configs.each do |connection|
        mysql_command = [
          "mysql -uroot",
          ("-proot" if ENV["MYSQL_CODESPACES"]),
          mysql_connection_arguments[connection, exclude_user_password: true],
        ].join(" ")
        %x( #{mysql_command} -e "CREATE USER IF NOT EXISTS '#{connection["username"]}'@'%';" )
        %x( #{mysql_command} -e "GRANT ALL PRIVILEGES ON #{connection["database"]}.* to '#{connection["username"]}'@'%'" )
        %x( #{mysql_command} -e "GRANT ALL PRIVILEGES ON inexistent_activerecord_unittest.* to '#{connection["username"]}'@'%';" )
      end
    end

    desc "Build the MySQL test databases"
    task build: ["db:mysql:build_user"] do
      mysql_configs.each do |connection|
        %x( mysql #{mysql_connection_arguments[connection]} -e "create DATABASE IF NOT EXISTS #{connection["database"]} DEFAULT CHARACTER SET utf8mb4" )
      end
    end

    desc "Drop the MySQL test databases"
    task drop: ["db:mysql:build_user"] do
      mysql_configs.each do |connection|
        %x( mysql #{mysql_connection_arguments[connection]} -e "drop database IF EXISTS #{connection["database"]}" )
      end
    end

    desc "Rebuild the MySQL test databases"
    task rebuild: [:drop, :build]
  end

  namespace :postgresql do
    desc "Build the PostgreSQL test databases"
    task :build do
      config = ARTest.config["connections"]["postgresql"]
      %x( createdb -E UTF8 -T template0 #{config["arunit"]["database"]} --lc-collate en_US.UTF-8 )
      %x( createdb -E UTF8 -T template0 #{config["arunit2"]["database"]} --lc-collate en_US.UTF-8 )
    end

    desc "Drop the PostgreSQL test databases"
    task :drop do
      config = ARTest.config["connections"]["postgresql"]
      %x( dropdb --if-exists #{config["arunit"]["database"]} )
      %x( dropdb --if-exists #{config["arunit2"]["database"]} )
    end

    desc "Rebuild the PostgreSQL test databases"
    task rebuild: [:drop, :build]
  end
end

task build_mysql_databases: "db:mysql:build"
task drop_mysql_databases: "db:mysql:drop"
task rebuild_mysql_databases: "db:mysql:rebuild"

task build_postgresql_databases: "db:postgresql:build"
task drop_postgresql_databases: "db:postgresql:drop"
task rebuild_postgresql_databases: "db:postgresql:rebuild"

task :lines do
  load File.expand_path("../tools/line_statistics", __dir__)
  files = FileList["lib/active_record/**/*.rb"]
  CodeTools::LineStatistics.new(files).print_loc
end
